Shimano EW-JC130MM Y-Split E-Tube Connector

Shimano offers several so-called B Junction, Y-Split connection harnesses for E-Tube Di2. These connectors have been developed to allow you to connect your cockpit controls as cleanly and efficiently as possible. All options start with EW-JC130. This MM version features three cables that join at a permanent Y-junction, with three male connectors, one at the end of each cable.

This EW-JC130MM Y-Split E-Tube Connector has a (A) feed that goes into the Y-Split. One branch of the Y-Split is long (B), the other is short (C). This system cannot be shortened or modified, and works with all E-Tube Di2 shifters.